Improved extractor of tubes, drills



UNITED STATES PATENT OEEICE.

IILLIAM R. HINSDALE, OF BROOKLYN, NE YORK.

IMPROVED EXTRACTOR 0F TUBES, DRILLS, c., FROM OIL-WELLS.

Spccication forming part 0f Letters Patent No. 49,628. dated August 29, 1865.

To all. whom it may concern:

Beit known that I, WILLIAM R. HINsDALE, ot' Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in SpringiOatch-alls or Sockets for Raising Rods, Tubes, Sac.; and I do hereby declare that the following` is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification.

Figurel is aperspective view of myimproved device; Fig. 2, a central vertical section of the same situated in the elevatingtube of an oilwell, and in the act of raising a rod provided with couplings; Fig. 3, a similar view ot' the same in the act of raising a smooth wooden rod.

Like letters of reference indicate corresponding parts in all the iigures. Y

My improved device is intended more pariicularly for removing sticker or pump rods from oil-wells, but is also equally adapted to raising iron or wooden rods ot' any kind, or tubes or drills.

The invention consists in the combination of a short tube or cylinder or equivalent and a projecting spring or springs inside it, the whole so arranged as to slide down easily over the end ot' the rod to be raised, and then catch it to hold it.

As represented in the drawings, A is the tube or cylinder, which may be of any desirable size and length, but for use in oil-wells it is made of a diameter to easily slide up and down in the outer elevating or oil tube, and ot' a length only to insure the necessary strength to properly receive the necessary size of spring within and to brace against the weight of rod to be raised. In order to easily pass over the end of the rod to be raised, the lower end of the tube is preferably made beveled or sharp-edged outward, as represented at c, Figs. 2 and 3. It is obvious that the form of the tube may be modified without changing the nature of the invention. Tlie top otl the tube is provided with a bar or extension, B,on one side, as shown, leaving the top open. This bar is ot' suflcient length to allow the sucker-rod to projectthrough far enough to enable the spring presently to be described to catch under the couplings of the sections. To the top ofthe bar are attached rods or a rope for operatic g the device.

On the inside of the tube above described is situated a spring or springs, C, secured at the bottom, but projecting upward and inward, as represented, so that the top or tops come about level with the top of the tube. The spring or springs may or may not be armed with teeth I) b. Instead of the form of spring represented any other accomplishing a like effect may be employed.

In drawing a sucker or pump rod from an oil-well, two eli'ects are necessary-tirst, to encircle or embrace it, and, second, to take hold of it in such a manner as to raise it. These two et't'ects are perfectly accomplished in my device. The tube A fits over and around the top of the rod to be raised and clasps or holds it steady, while thespring or springs C catch either under the couplings of the rod, (if there are any,) as shown in Fig. 2, or catch against the side ofthe rod, (if the same is smooth,) as shown in Fig. 3.

In operating, a sutcient weight of rod or shaft is connected with the device to enable it to fall with considerable force, so that when it strikes the top of the sucker-rod it will be driven over it. This effect is more perfectly accomplished by making the lower end of the tube sharp-edged, as before described. When the rod to be raised is provided with couplings the top ot' the spring or springs, being situated level with the top of the tube, causes the coupling to catch both over the spring and the top of the tube, so as to have a double bearing, as indicated in Fig. 2.

In oil-wells the sucker-rods are frequently made of wooden sections with iron couplings composed of two parts which screw together. The rivets that hold these couplings to the wood frequently break out, leaving the end of the wood projecting upward, and this, receiving the blows ofthe upper portion, becomes bruised and slivered, so as to fill the arca ot' the oiltube and render it exceedingly dii-heult to attach any apparatus for removing the rod. My device, by falling with considerable momentum, having snicient weight ot rod attached, is driven easily over the end of the wood, and in this condition holds, so that the rod can be easily Withdrawn. My device thus combines effectiveness with strength and economy of space.

Owing to the difficulty of catching and holding the sucker-rod by the means now employed at oilwells, it is frequently the case that the whole tubing must be raised, and consequently the seed-bag around the tubing must be destroyed. This is not onlya work of great difficulty, but the Well is frequently greatly iniured by so doing. It is obvious that the employment of my device remedies this difficulty, for I am enabled to catch and hold the Sucker-rod securely, and' thereby obviate the necessity of raising the tubing.'

What I claim is- Thecylinder A, to which the bar B is attached at one side, so as to afford no obstruction to the passage of the rod to be raised through the said cylinder to any desired extent, and which is constructed sharp-edged at the lower end, as described, in combination with the spring C, the top ot' which is nearly 011 a level with the top of the said cylinder, for the purpose specified, all arranged in the manner herein set forth.

In witness whereof -I have hereunto signed my name in the presence of two subscribing Witnesses.

WM. R. HINSDALE.

Witnesses:

JAY HYATT, AARON MiLLER. 

